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simulation spring back and deep drawing abaqus

Deep drawing of sheet metal is an important manufacturing technique. In the deep drawing process a “blank” of sheet metal is clamped by a blank holder against a die. A punch is then moved against the blank which is drawn into the die 

the blank is drawn from between these two tools. The ratio of drawing versus stretching is controlled by the force on the blank holder and the friction conditions at the interface between the blank and the blank holder and the die

Final configuration after deep drawing

To obtain a successful deep drawing process, it is essential to control the slip between the blank and its holder and die If the slip is restrained too much, the material will undergo severe stretching, thus potentially causing necking and rupture. If the blank can slide too easily, the material will be drawn in completely and high compressive circumferential stresses will develop, causing wrinkling in the product 

Final configuration after deep drawing

The blank being drawn has an initial long of 300 mm and an initial thickness of 1 mm 

The rigid punch, the die, and the blank holder are modeled as analytical rigid surfaces with the *RIGID BODY option

The coefficient of friction between the interface and the punch is taken to be 0.13; and that between the die and the blank holder is taken as 0.13, 

In the first step the applied force of 30 kN on the blank holder 

In the second step the punch is moved toward the blank through a total distance of 60 mm This step models the actual drawing process

Final configuration after springback

we use Static General analysis for simulation springback

Duration :34 minutes

Resolution: 1280*768

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